Although this is just my opinion, I believe that the dragonfire needs some tweeking. First increase the number of hits needed to 2-3. Second make it where it is capable of taking more than 5 bullets. It is not like this is a UAV, the War Machine requires less points and is 20X better.

im having great success with it, i am a sneaky player though. like, in a game of dom on meltdown, if u hover just above the roof (so that it is pretty much touching the roof) of the one of the building that over look B, u can take out snipers and people pushing B. Also, my top tip is fly it as close to the dround as possible, reason being that when someone see's it on the radar, they instictivley look up, easy kills for days